Cita APA (7th ed.)

Soil Survey Staff. (1975). Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. Soil Conservation Service.

Cita Chicago (17th ed.)

Soil Survey Staff. Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys. Washington, D.C: Soil Conservation Service, 1975.

Cita MLA (9th ed.)

Soil Survey Staff. Soil Taxonomy: A Basic System of Soil Classification for Making and Interpreting Soil Surveys. Soil Conservation Service, 1975.